Series 21
Epoxoline
Generic Type
Phenalkamine Epoxy
Common Usage
High solids, immersion-grade coating offering exceptional build per coat for long-term corrosion resistance. For use on the interior and exterior of steel or concrete tanks, reservoirs, pipes, valves, pumps, and equipment, as well as other steel and concrete substrates. Specially formulated to meet the latest requirements for use in potable water applications.
Special Qualifications
Certified by NSF International in accordance with NSF/ANSI/CAN Std. 61 and the extraction requirements of NSF/ANSI/CAN 600. Series 21 is qualified for interior use on tanks and reservoirs, pipes, fittings, valves and pumps. Reference Tnemec’s certified product listing at www.nsf.org for additional details. Conforms to AWWA D102 Inside Systems No. 1, 2, 5 and 6.
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HAPS
Unthinned: 1.14 lbs/gal solids
Thinned 10% (No. 88 Thinner): 1.79 lbs/gal solids
Number of Components
Two: Part A (epoxy) and Part B (amine)
Volume Solids
82% ± 2.0% (mixed) †
Volatile Organic Compounds
Unthinned: 1.20 lbs/gallon (144 grams/litre)
Thinned 10% (No. 88 Thinner): 1.69 lbs/gallon (203 grams/litre) †
Recommended DFT
4.0 to 20.0 mils (100 to 510 microns). Note: Thickness requirements will vary with substrate, application method and exposure. Contact your Tnemec representative.
Primers
Steel: Self-priming, Series 1, L69, L69F, N69, N69F, 91-H²O, 94-H²O, 98-H_2_O, L140, L140F, N140, N140F, 394
Concrete: Self-priming, L69, L69F, N69, N69F, L140, L140F, N140, N140F, 215, 218.
CMU: Self-priming or Series 215
Note: The following maximum recoat times apply; itself, 30 days; Series 1, L69, N69, 91-H2O, 94-H2O, 98-H2O, L140 or N140, 9 months.
Curing Time
| Temperature | To Handle | To Topcoat | Potable Water Immersion |
|---|---|---|---|
| 90°F (32°C) | 2 hours | 4 hours | 7 days |
| 75°F (24°C) | 3 hours | 5 hours | 7 days |
| 65°F (18°C) | 5 hours | 9 hours | 8 days |
| 55°F (13°C) | 12 hours | 18 hours | 9 days |
| 45°F (7°C) | 20 hours | 24 hours | 13 days |
| 40°F (4°C) | 22 hours | 28 hours | 18 days |
| 35°F (2°C) | 64 hours | 72 hours | 30 days |
Curing time varies with surface temperature, air movement, humidity and film thickness. Note: Maximum recoat time with itself is 30 days.
Theoretical Coverage
1,315 mil sq ft/gal (31.5 m²/L at 25 microns). See APPLICATION for coverage rates. †
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